php获取域名ip

获取客户端IP公共类代码

<?php
/**
 * @name IpHelper
 * @desc Ip 
 * @author
 */
class IpHelper {
 /**
 * 获取用户真实IP
 * @return $onlineIp
 */
 public static function getOnlineIp() {
 if (getenv('HTTP_CLIENT_IP')) {
 $onlineIp = getenv('HTTP_CLIENT_IP');
 } elseif (getenv('HTTP_X_FORWARDED_FOR')) {
 $onlineIp = getenv('HTTP_X_FORWARDED_FOR');
 } elseif (getenv('REMOTE_ADDR')) {
 $onlineIp = getenv('REMOTE_ADDR');
 } else {
 $onlineIp = 'unknown';
 }
 return $onlineIp;
 }
}